How to print all possible combinations of a list or array of numbers.

Question

Please help. I need to know how to print to screen all the possible combinations(not permutations) of a list of numbers.

Answer 1

Loops inside of loops:

for(int x = 0; x < 5; x++){
for(int y = 0; y < 3; y ++){
Console.WriteLine("{0} : {1}", x, y);
}
}